/*Adjust the layout in IE8 and lower than IE8 when the browser is narrow*/
function processLowerIENavigate()
{
   var isIE = document.all ? 1 : 0;
   if (isIE == 1)
   {
       if(navigator.userAgent.indexOf("MSIE7.0") > 0 || navigator.userAgent.indexOf("MSIE 8.0") > 0)
       {  
    //  var doc=document; 
           var link=document.createElement("link");
           link.setAttribute("rel", "stylesheet");
           link.setAttribute("type", "text/css");
           link.setAttribute("id", "size-stylesheet");
           link.setAttribute("href", "");
  
           var heads = document.getElementsByTagName("head");
           if(heads.length)
               heads[0].appendChild(link);
           else
               document.documentElement.appendChild(link);

//           document.write("<script type='text/javascript' src='jquery.min.js'></script>");
           document.write("<script type='text/javascript' src='/sizheng/js/utilJs/media_screen.js'></script>");
  
       }
   } 
}
var lowerIE8 = processLowerIENavigate();

//media_screen.js文件内容如下，直接从网上copy：
